Ảnh đẹp Mây Cuộn (roll cloud)

A Roll Cloud Over Uruguay

Roll Cloud at South Oliphant, Ontario - 5/27/2007 

 This weather phenomenon, known as a "Roll Cloud", stretched across the sky and spun in a spiral rotation on May 27, 2007. The cloud came in off of Lake Huron and passed over Chief's Point and our family's property at the southern end of Oliphant in Bruce County, Ontario. We quickly realized that this cloud was being pushed by a cold air mass as the temperature dropped from the low-70s down to the mid-50s in about 3 minutes. Chilly gusts of wind picked up as the cloud passed overhead.

 

 

 

Maldonado, Uruguay

White Oak, Ohio

Albany, Mo.

Bowling Green, Ky.

Lubbock, Texas

 
Beautiful Morning Glory Cloud. The Morning Glory is a very rare meteorological phenomenon. It can be observed in Northern Australia’s Gulf of Carpentaria. A Morning Glory cloud is a roll cloud that can be up to 620 miles (1000 kilometers) long, 0.5 to 1.2 miles (1 to 2 kilometers) high, and can move at speeds up to 37 mph (60 km/h).— with Charrie Benedetti, Blair Ferguson, Pilar Rodríguez, Connie Coulter and Ornella Michelini.